Shutter-fastener



(No Model.)

L. ABBOTT.

Jig-2.

@5 5. o 0 00 Z l o we, a? Inuafltor. Wvi s 6- it UNITED STATES PATENT OFFICE.

LEVI ABBOTT, OF CAMBRIDGE, ASSIGNOR OF ONE-HALF TO GEORGE C. BABNEY, OF BOSTON, MASSACHUSETTS.

SHUTTE R-FASTENE R.

SPECIFICATION forming part of Letters Patent; No 350,095, dated October 5, 1886.

Application filed November 28, 1884. Renewed March 5, 1886. Serial No. 194.181. (No model.)

To all whom it may concern.-

Be it known that I, LEVI ABBOTT, of Cambridge, in the county of Middlesex and State of Massachusetts, have invented certain Improvements in Shutter-Fasteners, of which the following is a specifica ion.

This invention has for its object to provide an improved device for hoiding a windowblind either open, elosed, or at various intermediate positions; and it consists in a latch or bar pivoted to the side of the blind at a distance from its inner edge, so that it can swing vertica ly. and provided with a head or enlargement at its free end. said head being provided with a series of radial grooves adapted to engage with a stud or catch affixed to the window-casing and hold the blind in the various positions above indicated.

The invention also consists in an operating device whereby the latch may be moved by a person behind the blind when the latter is closed,and a spring whereby the latch is pressed downwardly, all of which I will now proceed to describe.

In the accompanying drawings, forming a part of this specification, Figure 1. represents a side view of a window easi n g and blind provided with my improvements. Fig. 2 repre sents an edge view of the same, and Fig. 3 represents a bottom view.

The same letters of reference indicate the same parts in all the figures.

In the drawings, a represents my improved latch, which is pivoted at b to the outer surface of the blind, its free end projecting beyond the inner edge of the blind. and being provided with a head or enlargement, a, in which is formed a series of radial grooves, c.

d represents a catch or stud aflixed rigidly to the casing and arranged to engage with either one of the grooves 0, according to the position of the blind, one groove coinciding with the stud when the blind is closed, an other when the blind is opened, and others when the blind is at different intermediate angles. The blind is locked or held in the different positions by the engagement of the latch with the stud or catch, as will be readily seen.

j' represents an operating rod journalcd in the bottom rail of the blind, and provided at the inner side of the blind with a handle, h, and at the outer side of the blind with an eccentric. f, which enters an orifice, 0, in the latch. When the blind is closed, a person behind it can raise the latch by turning the bandle h. The engagement of the eccentric f with the orifice in the latch enables the eccentrio to press the latch downwardly onto the stud or catch, if desired.

t represents a guide or staple, which limits the upward movement of the swinging end of the latch and prevents the latch from being displaced sidewisc.

j represents a spring, which presses downwardly on the grooved end of the latch, and thus insures its engagement with the stud or catch.

I claim 1. The improved blind-fastener composed of the latch pivoted to the side of the blind, and projecting at its free end beyond the inner edge of the blind, and provided with the radiallygrooved head or enlargement at its swinging end, and a stud or catch secured to the casing in position to engage with the notch in the latch, as set forth.

2. The pivoted latch having the grooved head or enlargement, combined with the handle or operating device journaled in the blind and provided with a cam or eccentric engaged with the latch, as set forth.

3. The pivoted latch having the grooved head orenlargement, combined with the spring a, pressing downwardly on the swinging end of the latch. as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 25th day of November, 1884.

LEVI ABBOTT.

\Vitnesses:

O. F. BROWN, H. BROWN. 

